diff options
Diffstat (limited to 'pixman/pixman/pixman-general.c')
| -rw-r--r-- | pixman/pixman/pixman-general.c | 628 |
1 files changed, 313 insertions, 315 deletions
diff --git a/pixman/pixman/pixman-general.c b/pixman/pixman/pixman-general.c index 5a639051b..16ea3a457 100644 --- a/pixman/pixman/pixman-general.c +++ b/pixman/pixman/pixman-general.c @@ -1,315 +1,313 @@ -/*
- * Copyright © 2009 Red Hat, Inc.
- * Copyright © 2000 SuSE, Inc.
- * Copyright © 2007 Red Hat, Inc.
- * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
- * 2005 Lars Knoll & Zack Rusin, Trolltech
- * 2008 Aaron Plattner, NVIDIA Corporation
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Red Hat not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission. Red Hat makes no representations about the
- * suitability of this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- *
- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
- * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
- * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "pixman-private.h"
-#include "pixman-combine32.h"
-#include "pixman-private.h"
-
-#define SCANLINE_BUFFER_LENGTH 8192
-
-static void
-general_composite_rect (pixman_implementation_t *imp,
- pixman_op_t op,
- pixman_image_t * src,
- pixman_image_t * mask,
- pixman_image_t * dest,
- int32_t src_x,
- int32_t src_y,
- int32_t mask_x,
- int32_t mask_y,
- int32_t dest_x,
- int32_t dest_y,
- int32_t width,
- int32_t height)
-{
- uint64_t stack_scanline_buffer[(SCANLINE_BUFFER_LENGTH * 3 + 7) / 8];
- uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer;
- uint8_t *src_buffer, *mask_buffer, *dest_buffer;
- fetch_scanline_t fetch_src = NULL, fetch_mask = NULL, fetch_dest = NULL;
- pixman_combine_32_func_t compose;
- store_scanline_t store;
- source_image_class_t src_class, mask_class;
- pixman_bool_t component_alpha;
- uint32_t *bits;
- int32_t stride;
- int narrow, Bpp;
- int i;
-
- narrow =
- (src->common.flags & FAST_PATH_NARROW_FORMAT) &&
- (!mask || mask->common.flags & FAST_PATH_NARROW_FORMAT) &&
- (dest->common.flags & FAST_PATH_NARROW_FORMAT);
- Bpp = narrow ? 4 : 8;
-
- if (width * Bpp > SCANLINE_BUFFER_LENGTH)
- {
- scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
-
- if (!scanline_buffer)
- return;
- }
-
- src_buffer = scanline_buffer;
- mask_buffer = src_buffer + width * Bpp;
- dest_buffer = mask_buffer + width * Bpp;
-
- src_class = _pixman_image_classify (src,
- src_x, src_y,
- width, height);
-
- mask_class = SOURCE_IMAGE_CLASS_UNKNOWN;
-
- if (mask)
- {
- mask_class = _pixman_image_classify (mask,
- src_x, src_y,
- width, height);
- }
-
- if (op == PIXMAN_OP_CLEAR)
- fetch_src = NULL;
- else if (narrow)
- fetch_src = _pixman_image_get_scanline_32;
- else
- fetch_src = _pixman_image_get_scanline_64;
-
- if (!mask || op == PIXMAN_OP_CLEAR)
- fetch_mask = NULL;
- else if (narrow)
- fetch_mask = _pixman_image_get_scanline_32;
- else
- fetch_mask = _pixman_image_get_scanline_64;
-
- if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
- fetch_dest = NULL;
- else if (narrow)
- fetch_dest = _pixman_image_get_scanline_32;
- else
- fetch_dest = _pixman_image_get_scanline_64;
-
- if (narrow)
- store = _pixman_image_store_scanline_32;
- else
- store = _pixman_image_store_scanline_64;
-
- /* Skip the store step and composite directly into the
- * destination if the output format of the compose func matches
- * the destination format.
- *
- * If the destination format is a8r8g8b8 then we can always do
- * this. If it is x8r8g8b8, then we can only do it if the
- * operator doesn't make use of destination alpha.
- */
- if ((dest->bits.format == PIXMAN_a8r8g8b8) ||
- (dest->bits.format == PIXMAN_x8r8g8b8 &&
- (op == PIXMAN_OP_OVER ||
- op == PIXMAN_OP_ADD ||
- op == PIXMAN_OP_SRC ||
- op == PIXMAN_OP_CLEAR ||
- op == PIXMAN_OP_IN_REVERSE ||
- op == PIXMAN_OP_OUT_REVERSE ||
- op == PIXMAN_OP_DST)))
- {
- if (narrow &&
- !dest->common.alpha_map &&
- !dest->bits.write_func)
- {
- store = NULL;
- }
- }
-
- if (!store)
- {
- bits = dest->bits.bits;
- stride = dest->bits.rowstride;
- }
- else
- {
- bits = NULL;
- stride = 0;
- }
-
- component_alpha =
- fetch_src &&
- fetch_mask &&
- mask &&
- mask->common.type == BITS &&
- mask->common.component_alpha &&
- PIXMAN_FORMAT_RGB (mask->bits.format);
-
- if (narrow)
- {
- if (component_alpha)
- compose = _pixman_implementation_combine_32_ca;
- else
- compose = _pixman_implementation_combine_32;
- }
- else
- {
- if (component_alpha)
- compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
- else
- compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
- }
-
- if (!compose)
- return;
-
- if (!fetch_mask)
- mask_buffer = NULL;
-
- for (i = 0; i < height; ++i)
- {
- /* fill first half of scanline with source */
- if (fetch_src)
- {
- if (fetch_mask)
- {
- /* fetch mask before source so that fetching of
- source can be optimized */
- fetch_mask (mask, mask_x, mask_y + i,
- width, (void *)mask_buffer, 0);
-
- if (mask_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
- fetch_mask = NULL;
- }
-
- if (src_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
- {
- fetch_src (src, src_x, src_y + i,
- width, (void *)src_buffer, 0);
- fetch_src = NULL;
- }
- else
- {
- fetch_src (src, src_x, src_y + i,
- width, (void *)src_buffer, (void *)mask_buffer);
- }
- }
- else if (fetch_mask)
- {
- fetch_mask (mask, mask_x, mask_y + i,
- width, (void *)mask_buffer, 0);
- }
-
- if (store)
- {
- /* fill dest into second half of scanline */
- if (fetch_dest)
- {
- fetch_dest (dest, dest_x, dest_y + i,
- width, (void *)dest_buffer, 0);
- }
-
- /* blend */
- compose (imp->toplevel, op,
- (void *)dest_buffer,
- (void *)src_buffer,
- (void *)mask_buffer,
- width);
-
- /* write back */
- store (&(dest->bits), dest_x, dest_y + i, width,
- (void *)dest_buffer);
- }
- else
- {
- /* blend */
- compose (imp->toplevel, op,
- bits + (dest_y + i) * stride + dest_x,
- (void *)src_buffer, (void *)mask_buffer, width);
- }
- }
-
- if (scanline_buffer != (uint8_t *) stack_scanline_buffer)
- free (scanline_buffer);
-}
-
-static const pixman_fast_path_t general_fast_path[] =
-{
- { PIXMAN_OP_any, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, general_composite_rect },
- { PIXMAN_OP_NONE }
-};
-
-static pixman_bool_t
-general_blt (pixman_implementation_t *imp,
- uint32_t * src_bits,
- uint32_t * dst_bits,
- int src_stride,
- int dst_stride,
- int src_bpp,
- int dst_bpp,
- int src_x,
- int src_y,
- int dst_x,
- int dst_y,
- int width,
- int height)
-{
- /* We can't blit unless we have sse2 or mmx */
-
- return FALSE;
-}
-
-static pixman_bool_t
-general_fill (pixman_implementation_t *imp,
- uint32_t * bits,
- int stride,
- int bpp,
- int x,
- int y,
- int width,
- int height,
- uint32_t xor)
-{
- return FALSE;
-}
-
-pixman_implementation_t *
-_pixman_implementation_create_general (void)
-{
- pixman_implementation_t *imp = _pixman_implementation_create (NULL, general_fast_path);
-
- _pixman_setup_combiner_functions_32 (imp);
- _pixman_setup_combiner_functions_64 (imp);
-
- imp->blt = general_blt;
- imp->fill = general_fill;
-
- return imp;
-}
-
+/* + * Copyright © 2009 Red Hat, Inc. + * Copyright © 2000 SuSE, Inc. + * Copyright © 2007 Red Hat, Inc. + * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc. + * 2005 Lars Knoll & Zack Rusin, Trolltech + * 2008 Aaron Plattner, NVIDIA Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Red Hat not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. Red Hat makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + */ +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdlib.h> +#include <string.h> +#include <math.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "pixman-private.h" +#include "pixman-combine32.h" +#include "pixman-private.h" + +static void +general_src_iter_init (pixman_implementation_t *imp, + pixman_iter_t *iter, + pixman_image_t *image, + int x, int y, int width, int height, + uint8_t *buffer, iter_flags_t flags) +{ + iter->image = image; + iter->x = x; + iter->y = y; + iter->width = width; + iter->buffer = (uint32_t *)buffer; + + if (image->type == SOLID) + { + _pixman_solid_fill_iter_init ( + image, iter, x, y, width, height, buffer, flags); + } + else if (image->type == LINEAR) + { + _pixman_linear_gradient_iter_init ( + image, iter, x, y, width, height, buffer, flags); + } + else if (image->type == RADIAL) + { + _pixman_radial_gradient_iter_init ( + image, iter, x, y, width, height, buffer, flags); + } + else if (image->type == CONICAL) + { + _pixman_conical_gradient_iter_init ( + image, iter, x, y, width, height, buffer, flags); + } + else if (image->type == BITS) + { + _pixman_bits_image_src_iter_init ( + image, iter, x, y, width, height, buffer, flags); + } + else + { + _pixman_log_error (FUNC, "Pixman bug: unknown image type\n"); + } +} + +static void +general_dest_iter_init (pixman_implementation_t *imp, + pixman_iter_t *iter, + pixman_image_t *image, + int x, int y, int width, int height, + uint8_t *buffer, iter_flags_t flags) +{ + iter->image = image; + iter->x = x; + iter->y = y; + iter->width = width; + iter->buffer = (uint32_t *)buffer; + + if (image->type == BITS) + { + _pixman_bits_image_dest_iter_init ( + image, iter, x, y, width, height, buffer, flags); + } + else + { + _pixman_log_error (FUNC, "Trying to write to a non-writable image"); + } +} + +typedef struct op_info_t op_info_t; +struct op_info_t +{ + uint8_t src, dst; +}; + +#define ITER_IGNORE_BOTH \ + (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB | ITER_LOCALIZED_ALPHA) + +static const op_info_t op_flags[PIXMAN_N_OPERATORS] = +{ + /* Src Dst */ + { ITER_IGNORE_BOTH, ITER_IGNORE_BOTH }, /* CLEAR */ + { ITER_LOCALIZED_ALPHA, ITER_IGNORE_BOTH }, /* SRC */ + { ITER_IGNORE_BOTH, ITER_LOCALIZED_ALPHA }, /* DST */ + { 0, ITER_LOCALIZED_ALPHA }, /* OVER */ + { ITER_LOCALIZED_ALPHA, 0 }, /* OVER_REVERSE */ + { ITER_LOCALIZED_ALPHA, ITER_IGNORE_RGB }, /* IN */ + { ITER_IGNORE_RGB, ITER_LOCALIZED_ALPHA }, /* IN_REVERSE */ + { ITER_LOCALIZED_ALPHA, ITER_IGNORE_RGB }, /* OUT */ + { ITER_IGNORE_RGB, ITER_LOCALIZED_ALPHA }, /* OUT_REVERSE */ + { 0, 0 }, /* ATOP */ + { 0, 0 }, /* ATOP_REVERSE */ + { 0, 0 }, /* XOR */ + { ITER_LOCALIZED_ALPHA, ITER_LOCALIZED_ALPHA }, /* ADD */ + { 0, 0 }, /* SATURATE */ +}; + +#define SCANLINE_BUFFER_LENGTH 8192 + +static void +general_composite_rect (pixman_implementation_t *imp, + pixman_op_t op, + pixman_image_t * src, + pixman_image_t * mask, + pixman_image_t * dest, + int32_t src_x, + int32_t src_y, + int32_t mask_x, + int32_t mask_y, + int32_t dest_x, + int32_t dest_y, + int32_t width, + int32_t height) +{ + uint64_t stack_scanline_buffer[(SCANLINE_BUFFER_LENGTH * 3 + 7) / 8]; + uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer; + uint8_t *src_buffer, *mask_buffer, *dest_buffer; + pixman_iter_t src_iter, mask_iter, dest_iter; + pixman_combine_32_func_t compose; + pixman_bool_t component_alpha; + iter_flags_t narrow, src_flags; + int Bpp; + int i; + + if ((src->common.flags & FAST_PATH_NARROW_FORMAT) && + (!mask || mask->common.flags & FAST_PATH_NARROW_FORMAT) && + (dest->common.flags & FAST_PATH_NARROW_FORMAT)) + { + narrow = ITER_NARROW; + Bpp = 4; + } + else + { + narrow = 0; + Bpp = 8; + } + + if (width * Bpp > SCANLINE_BUFFER_LENGTH) + { + scanline_buffer = pixman_malloc_abc (width, 3, Bpp); + + if (!scanline_buffer) + return; + } + + src_buffer = scanline_buffer; + mask_buffer = src_buffer + width * Bpp; + dest_buffer = mask_buffer + width * Bpp; + + /* src iter */ + src_flags = narrow | op_flags[op].src; + + _pixman_implementation_src_iter_init (imp->toplevel, &src_iter, src, + src_x, src_y, width, height, + src_buffer, src_flags); + + /* mask iter */ + if ((src_flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) == + (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) + { + /* If it doesn't matter what the source is, then it doesn't matter + * what the mask is + */ + mask = NULL; + } + + component_alpha = + mask && + mask->common.type == BITS && + mask->common.component_alpha && + PIXMAN_FORMAT_RGB (mask->bits.format); + + _pixman_implementation_src_iter_init ( + imp->toplevel, &mask_iter, mask, mask_x, mask_y, width, height, + mask_buffer, narrow | (component_alpha? 0 : ITER_IGNORE_RGB)); + + /* dest iter */ + _pixman_implementation_dest_iter_init (imp->toplevel, &dest_iter, dest, + dest_x, dest_y, width, height, + dest_buffer, + narrow | op_flags[op].dst); + + if (narrow) + { + if (component_alpha) + compose = _pixman_implementation_combine_32_ca; + else + compose = _pixman_implementation_combine_32; + } + else + { + if (component_alpha) + compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca; + else + compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64; + } + + if (!compose) + return; + + for (i = 0; i < height; ++i) + { + uint32_t *s, *m, *d; + + m = mask_iter.get_scanline (&mask_iter, NULL); + s = src_iter.get_scanline (&src_iter, m); + d = dest_iter.get_scanline (&dest_iter, NULL); + + compose (imp->toplevel, op, d, s, m, width); + + dest_iter.write_back (&dest_iter); + } + + if (scanline_buffer != (uint8_t *) stack_scanline_buffer) + free (scanline_buffer); +} + +static const pixman_fast_path_t general_fast_path[] = +{ + { PIXMAN_OP_any, PIXMAN_any, 0, PIXMAN_any, 0, PIXMAN_any, 0, general_composite_rect }, + { PIXMAN_OP_NONE } +}; + +static pixman_bool_t +general_blt (pixman_implementation_t *imp, + uint32_t * src_bits, + uint32_t * dst_bits, + int src_stride, + int dst_stride, + int src_bpp, + int dst_bpp, + int src_x, + int src_y, + int dst_x, + int dst_y, + int width, + int height) +{ + /* We can't blit unless we have sse2 or mmx */ + + return FALSE; +} + +static pixman_bool_t +general_fill (pixman_implementation_t *imp, + uint32_t * bits, + int stride, + int bpp, + int x, + int y, + int width, + int height, + uint32_t xor) +{ + return FALSE; +} + +pixman_implementation_t * +_pixman_implementation_create_general (void) +{ + pixman_implementation_t *imp = _pixman_implementation_create (NULL, general_fast_path); + + _pixman_setup_combiner_functions_32 (imp); + _pixman_setup_combiner_functions_64 (imp); + + imp->blt = general_blt; + imp->fill = general_fill; + imp->src_iter_init = general_src_iter_init; + imp->dest_iter_init = general_dest_iter_init; + + return imp; +} + |